I want to click on my screen and make my character move there, having trouble with raycasts.

So im trying to make a top down rpg style wc3 kind of project. So i want my character to follow my mouse when i click on the ground, however i am having porblems with Raycast as i am a noobie.

Heres the code.
using UnityEngine;
using System.Collections;

public class ClickToMove : MonoBehaviour {

	public Transform movepoint;

	float turnSpeed = 10.0f;
	float moveSpeed = 1;

	private bool isMoving = false;


	// Use this for initialization
	void Start () {
	
	}

	// Update is called once per frame
	void Update () {

		Debug.DrawRay(transform.position, Vector3.down);

		if(Input.GetMouseButtonDown(0))
		{
			//Here i check if i click the left mousbutton and where i click it.
			Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
			RaycastHit hit = new RaycastHit();

			if (Physics.Raycast(ray,out hit)) {
				print ("Your Cursor hit at " + hit.point + "!");
				GameObject toKill = GameObject.FindGameObjectWithTag("MoveLocation");
				GameObject.Destroy(toKill);
				Instantiate (movepoint, new Vector3(hit.point.x,hit.point.y + 1,hit.point.z), transform.rotation);
				isMoving = true;
			}

		}
		if (isMoving == true){
			GameObject toMove = GameObject.FindGameObjectWithTag("MoveLocation");
			transform.rotation = Quaternion.Slerp(transform.rotation, Quaternion.LookRotation(new Vector3(toMove.transform.position.x, toMove.transform.position.y,toMove.transform.position.z) - new Vector3(transform.position.x,transform.position.y,transform.position.z)), turnSpeed * Time.deltaTime);
			transform.position = Vector3.MoveTowards(transform.position, new Vector3(toMove.transform.position.x, toMove.transform.position.y, toMove.transform.position.z) , moveSpeed * Time.deltaTime);

			if (Vector3.Distance(transform.position,toMove.transform.position) <= 1) {
				isMoving = false;
				print("Im here.");

			}

			}

	}
}

i attach this script to my player and i create a empty gameobject that is called movepoint and a plane with the tag MoveLocation. I think i might have messed up on those so im gonna provide some pictures.

In the album theres also the error i get when i left click.

RaycastHit hit = new RaycastHit();

No need to do this you can just do

RaycastHit hit;